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This may also suggest that Bandai produced the Mogami kit first and then re-used the hull. That would be consistent with the Bandai catalogue numbers, which were:
8408 - Myoko
8409 - Atago
8410 - Chokai
8416 - Chikuma
8417 - Tone
(The number gaps are the battleships, not unreleased cruisers).
...(this) scan of the Bandai catalogue page I sent you some years ago...is dated 1974."
(Editor's Note: Take a close look at the map used as a background, above - I bet you never knew the Japanese came this close to invading America - and it explains a lot about what remains so suspicious about Canadians! OK, back to you, Billy...)
"...Overall the kit is not bad considering the compromises required for its target market:
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...BTW, I don't know where you measure the beam on a ship, as hulls often flare out above the waterline, and have bulges below. But the Bandai hull is 43mm wide at main deck level where the kit forward cross-brace is, and 41mm wide at the aft cross brace. At waterline those measurements are 38mm and 40 mm respectively (i.e. a lot more hull flare above the waterline forward than aft), and whilst this is harder to measure accurately, about 46mm (at the level of) the underwater bulges at (their) widest point, which is amidships.
The hull bottom piece is not straight sided amidships, but a genuine gentle curve over the full length of the ship over the bulges, but at waterline level there is a long straight section amidships. The lines are nowhere near as fine as indicated by my 1/700 waterline series Mogami and Tone (old mould) models...
(Meantime,) my references for IJN heavy cruisers give the beams as:
Takao class - 18.03m, later 20.73m;
Mogami class - 19.20m, later 20.20m;
Tone class - 18.50m.
All the beam measurements have '(fl)' after them (as distinct from (wl) for the length measurements). I don't know what 'fl' means, but as it changed for the first three classes after modernisation, I am assuming it includes the underwater bulges. If so, the 46mm of the model over bulges would represent 25.3m in 1/550 scale, which makes the kits considerably fatter than any of the actual ships...
...The actual kit (photographed here) is on its way back to (the seller, as he) later listed an also part-built 1:550 Mogami, which I snapped up...and have negotiated an exchange! Mogami is not quite as far built as the Chikuma, just some superstructure halves joined, and not the awful hull top/bottom mismatch which made (measurements on) the Chikuma hard to retrieve. I would have preferred an unbuilt Mogami, and indeed had been outbid when he listed one, but as I don't have a Mogami at all I am pleased to accept the compromise..."